Resolving dependencies... Configuring appar-0.1.4... Configuring byteorder-1.0.4... Building appar-0.1.4... Building byteorder-1.0.4... Installed byteorder-1.0.4 Configuring contstuff-1.2.6... Configuring bytestring-builder-0.10.8.1.0... Installed appar-0.1.4 Building contstuff-1.2.6... Building bytestring-builder-0.10.8.1.0... Configuring mtl-2.2.1... Installed bytestring-builder-0.10.8.1.0 Building mtl-2.2.1... Configuring network-2.6.3.1... Installed contstuff-1.2.6 Configuring primitive-0.6.2.0... Installed mtl-2.2.1 Building primitive-0.6.2.0... Building network-2.6.3.1... Configuring random-1.1... Installed primitive-0.6.2.0 Building random-1.1... Configuring safe-0.3.10... Installed network-2.6.3.1 Building safe-0.3.10... Configuring stm-2.4.4.1... Installed safe-0.3.10 Configuring text-1.2.2.1... Installed random-1.1 Building stm-2.4.4.1... Building text-1.2.2.1... Configuring zlib-0.6.1.2... Installed stm-2.4.4.1 Building zlib-0.6.1.2... Configuring transformers-compat-0.5.1.4... Installed zlib-0.6.1.2 Building transformers-compat-0.5.1.4... Installed transformers-compat-0.5.1.4 Configuring iproute-1.7.1... Building iproute-1.7.1... Configuring async-2.1.1... Installed iproute-1.7.1 Building async-2.1.1... Configuring exceptions-0.8.3... Installed text-1.2.2.1 Building exceptions-0.8.3... Configuring mmorph-1.0.9... Installed async-2.1.1 Building mmorph-1.0.9... Configuring transformers-base-0.4.4... Installed exceptions-0.8.3 Building transformers-base-0.4.4... Installed mmorph-1.0.9 Configuring attoparsec-0.10.4.0... Building attoparsec-0.10.4.0... Configuring blaze-builder-0.4.0.2... Installed transformers-base-0.4.4 Building blaze-builder-0.4.0.2... Configuring monad-control-1.0.1.0... Installed blaze-builder-0.4.0.2 Building monad-control-1.0.1.0... Installed attoparsec-0.10.4.0 Configuring streaming-commons-0.1.16... Building streaming-commons-0.1.16... Installed monad-control-1.0.1.0 Configuring lifted-base-0.2.3.8... Building lifted-base-0.2.3.8... Installed lifted-base-0.2.3.8 Configuring resourcet-1.1.9... Building resourcet-1.1.9... Installed streaming-commons-0.1.16 Installed resourcet-1.1.9 Configuring conduit-1.2.8... Building conduit-1.2.8... Installed conduit-1.2.8 Configuring conduit-extra-1.1.15... Building conduit-extra-1.1.15... Installed conduit-extra-1.1.15 Configuring dns-2.0.10... Building dns-2.0.10... Installed dns-2.0.10 Configuring dnscache-0.1.2... Building dnscache-0.1.2... Failed to install dnscache-0.1.2 Build log ( /home/builder/.cabal/logs/dnscache-0.1.2.log ): cabal: Entering directory '/tmp/cabal-tmp-19572/dnscache-0.1.2' Configuring dnscache-0.1.2... Building dnscache-0.1.2... Preprocessing library dnscache-0.1.2... [1 of 1] Compiling Network.DnsCache ( Network/DnsCache.hs, dist/build/Network/DnsCache.o ) Network/DnsCache.hs:183:9: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:187:19: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:193:19: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:199:19: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:208:19: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:209:19: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:210:19: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:300:30: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:301:5: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:302:5: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) Network/DnsCache.hs:303:5: error: Ambiguous occurrence ‘forkIO’ It could refer to either ‘Control.Concurrent.forkIO’, imported from ‘Control.Concurrent’ at Network/DnsCache.hs:35:1-25 (and originally defined in ‘GHC.Conc.Sync’) or ‘Control.ContStuff.forkIO’, imported from ‘Control.ContStuff’ at Network/DnsCache.hs:36:1-24 (and originally defined in ‘Control.ContStuff.Classes’) cabal: Leaving directory '/tmp/cabal-tmp-19572/dnscache-0.1.2' cabal: Error: some packages failed to install: dnscache-0.1.2 failed during the building phase. The exception was: ExitFailure 1